Literary usage of Quaverers

Below you will find example usage of this term as found in modern and/or classical literature:

1.The London Magazine by John Scott, John Taylor (1822)"... had a dancing foot and a fine ankle, and a voice which lent a grace to old
songs which the best of your theatrical quaverers fail to impart. ..."

3.France and the French: With Sixteen Illus by Charles Dawbarn (1911)"It would appear that if the Church wishes to maintain any hold in France, it must
come out resolutely from the ranks of the demi-semi-quaverers, from those ..."